'It's killing your houseplants!' Gardeners told cost-effective ways to protect their plants from cold weather

While many turn their attention to planting in greenhouses at this time of year, the plant variety and the severity of the cold can really impact their chances.

With unpredictable weather patterns threatening plant health, gardeners are being advised to take immediate precautions to protect their greenhouse plants.

Several cost-effective solutions are available to maintain adequate greenhouse temperatures during cold spells.

A spokesperson for GardenBuildingsDirect.co.uk said: "The weather at this time of year is very unpredictable and temperatures can dip suddenly. But being prepared means you have every chance of saving tender seedlings you are nurturing in the greenhouse.

"There are some simple ways gardeners can make sure the greenhouse is warm enough. Filling small cracks and holes is a quick fix which will make a big difference. Covering plants with fleece and bubble wrap are both cost-effective ways to keep them warm.

"Long-term, consider a greenhouse heating system and investing in insulation blankets to help keep your greenhouse at the right temperature."

Several immediate actions to protect greenhouse plants from cold damage. Sealing small cracks and holes is crucial, as these gaps can develop due to weather changes and ageing, leading to significant heat loss.

Horticultural fleece provides essential protection during very cold nights, though it should be removed during daylight hours to ensure proper light and ventilation.

Insulation blankets offer a cost-effective solution for heat retention. These can be draped over or attached to the greenhouse frame during nighttime temperature drops.

These measures are particularly important for maintaining the minimum 5°C temperature needed for tender plant survival.

Bubble wrap offers another affordable insulation method, with experts recommending its application to both greenhouse windows and plant pots.

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For more severe cold spells, heating mats or fan heaters can provide additional warmth without increasing humidity levels.

These heating systems should be used selectively on the coldest days to manage energy costs.

Proper greenhouse placement is also vital for temperature control, experts advised. Sunlight remains the most effective natural heating source, making it essential to position greenhouses away from shade cast by trees or buildings.

These measures combined can help maintain the crucial minimum temperature needed to protect vulnerable plants.